Previously, any test needing an SSL certificate file would automatically
skip if the file could not be found. But that makes it too easy to
accidentally skip tests.
Instead, change it so that the test fails if the certificate file doesn't
exist. That matches, for example, the fact that the test fails if
networking (LAN, WiFi) is not active.
Signed-off-by: Damien George <damien@micropython.org>
This adds asyncio ssl support with SSLContext and the corresponding
tests in `tests/net_inet` and `tests/multi_net`.
Note that not doing the handshake on connect will delegate the handshake to
the following `mbedtls_ssl_read/write` calls. However if the handshake
fails when a client certificate is required and not presented by the peer,
it needs to be notified of this handshake error (otherwise it will hang
until timeout if any). Finally at MicroPython side raise the proper
mbedtls error code and message.
Signed-off-by: Carlos Gil <carlosgilglez@gmail.com>
